busybox/testsuite/od.tests
Ron Yorston a165603d24 od_bloaty: fix floating point output
Currently od_bloaty does this:

   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -f
   od: invalid character 'F' in type string 'fF'
   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -t fD
   od: invalid character 'D' in type string 'fD'
   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | busybox od -t f
   0000000
   0000010

The first two occur because the alphabetic length specifier isn't being
properly skipped.  The third is due to the empty length specifier being
treated as alphabetic so we fall off the end of the FDL_sizeof array with
undetermined consequences.  Coreutils defaults to printing a double in
this case.

With this patch the output is:

   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -f
   0000000   0.0000000e+00   0.0000000e+00
   0000010
   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -t fD
   0000000   0.000000000000000e+00
   0000010
   $ /bin/echo -en '\x00\x00\x00\x00\x00\x00\x00\x00' | ./busybox od -t f
   0000000   0.000000000000000e+00
   0000010

I guess nobody uses BusyBox od to print floating point numbers.

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-19 13:12:02 +02:00

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#!/bin/sh
# Copyright 2008 by Denys Vlasenko
# Licensed under GPLv2, see file LICENSE in this source tree.
. ./testing.sh
# testing "test name" "commands" "expected result" "file input" "stdin"
optional DESKTOP
testing "od -b" \
"od -b" \
"\
0000000 110 105 114 114 117
0000005
" \
"" "HELLO"
SKIP=
optional DESKTOP
testing "od -f" \
"od -f" \
"\
0000000 0.0000000e+00 0.0000000e+00
0000010
" \
"" "\x00\x00\x00\x00\x00\x00\x00\x00"
SKIP=
optional DESKTOP LONG_OPTS
testing "od -b --traditional" \
"od -b --traditional" \
"\
0000000 110 105 114 114 117
0000005
" \
"" "HELLO"
SKIP=
optional DESKTOP LONG_OPTS
testing "od -b --traditional FILE" \
"od -b --traditional input" \
"\
0000000 110 105 114 114 117
0000005
" \
"HELLO" ""
SKIP=
exit $FAILCOUNT